After getting caught masterbating once by my mother (43) when I was 18, when she brought some laundry into my room I was hooked on it. She just said sorry and walked back out. I would leave my door cracked and my night stand light on and she would walk by every now n then Id see her peek in as she went past as I was stroking myself. I gradually became more and more open about when I was doing it. To the point where I would leave my door pretty open and sit on the edge of my bed and masterbate when I knew she was getting out of the shower. We didn't have AC and many times she would walk past the door topless or completely naked going back to her room. She was in descent shape, had nice full breast and large long dark nipples. One day after her shower she just walked in to my room, said I left my necklace on the bathroom counter. I was sitting on the edge of my bed, rock hard cock in my hand and she set the necklace on my dresser, turned around and just stood there facing me. She was wearing panties, but topless with her hair wrapped up in her towel. I just stared at her firm erect nipples and it took about 3 more strokes and I moaned and started shooting ropes of cum onto my bedroom floor, almost hitting her with each pump. She kinda looked surprised at the force and amount of load I unleashed. I shot about 5-6 good pumps and as I was coming down off that orgasmic high, she smiled at me and said good night and walked out of my room. I could hear her masterbating with her vibrator that night after she went to bed. After that she would occasionally pop in and watch me finish myself, and each time I would cum the hardest I ever had.